pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
-1.95	IUPAC digitized pKa	1	0	COc1cc(OC)c([N+](=O)[O-])[n+](O)c1	COc1cc(OC)c([N+](=O)[O-])[n+]([O-])c1	mol6607	COc1cc(OC)c([N+](=O)[O-])[n+]([O-])c1